US3864053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable guide jig for hand drill
Assignee: Individual
•
Filing: 1973-07-19
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Granted: 1975-02-04
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Expires: 1993-07-19
Abstract
Abstract A universal portable jig adapted to be hand held and to hold and support a portable electric drill at an adjustable predetermined angle relative to a surface to be penetrated by the bit of said drill which comprises: first and second substantially troughshaped main support members each having open ends, the second support member being nested in the first support member and pivotally supported thereby; pivoted adjustment being possible by virtue of the floor of first support member being foreshortened adjacent the pivotal axis; means for locking the first and second support members in predetermined pivotal angle relationship; and means for mounting the drill within and to the second support member, said mounting means being slideable longitudinally of the support member whereby the drill is advanceable towards an end of the jig to allow the bit to be operatively extended.
Inventors
- 👤 William James Harwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:59
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/0021; B25H1/0078; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/564; Y10T408/567
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
421 words
A portable jig adapted to be hand held and to hold and support a portable electric drill at an adjustable predetermined angle relative to a surface to be penetrated by the bit of said drill, which comprises: i. first and second substantially rectangular troughshaped main support members each having opposed sidewalls connected by a floor, and each having open ends; ii. the second support member being nested in the first support member and pivotally supported thereby by first and second fastening members, said fastening members each being adjacent and apart from a common end of the jig; iii. and the floor of the first support member being foreshortened at the end of the jig adjacent the fastening members; iv. means for locking the first and second support members in predetermined pivotal angle relationship; v. and on the floor of said second support member, means for mounting the portable electric drill within and to the second support member, said means for mounting being slideable longitudinally of said floor whereby the drill is advanceable towards an end of the jig so as to allow the said bit to be operatively extended; wherein vi. the sidewalls of each of the first and second support members are substantially parallel and aligned; vii. the second support member nesting closely inside the first member and being pivotally supported thereby by means of said first and second fastening members each extending through one sidewall of each support member adjacent a common end of the jig but above the floor of the second support member; viii. and the fastening members each having an axis of rotation and said axis being substantially co-aligned; ix. the floor of the first support member being foreshortened, extending only from the vicinity of the fastening members toward the end of the first support member remote therefrom; thereby x. permitting the floor of the second support member to be pivotal through an angle of at least about 45* with respect to the floor of the first support member; wherein xi. the ends of the sidewalls of the first support member remote from the fastening members are each provided with mutually coplanar and outwardly extending flange portions adapted to be placed on the surface to be penetrated by said bit and to act as a support base for the jig when in use; and wherein xii. the sidewalls of the first support member are each provided with an extended portion at an end thereof; and xiii. a hand receiving slot is provided in each extended portion.
Claim 2
Dependent Claim
421 words
A portable jig adapted to be hand held and to hold and support a portable electric drill at an adjustable predetermined angle relative to a surface to be penetrated by the bit of said drill, which comprises: i. first and second substantially rectangular troughshaped main support members each having opposed sidewalls connected by a floor, and each having open ends; ii. the second support member being nested in the first support member and pivotally supported thereby by first and second fastening members, said fastening members each being adjacent and apart from a common end of the jig; iii. and the floor of the first support member being foreshortened at the end of the jig adjacent the fastening members; iv. means for locking the first and second support members in predetermined pivotal angle relationship; v. and on the floor of said second support member, means for mounting the portable electric drill within and to the second support member, said means for mounting being slideable longitudinally of said floor whereby the drill is advanceable towards an end of the jig so as to allow the said bit to be operatively extended; wherein vi. the sidewalls of each of the first and second support members are substantially parallel and aligned; vii. the second support member nesting closely inside the first member and being pivotally supported thereby by means of said first and second fastening members each extending through one sidewall of each support member adjacent a common end of the jig but above the floor of the second support member; viii. and the fastening members each having an axis of rotation and said axis being substantially co-aligned; ix. the floor of the first support member being foreshortened, extending only from the vicinity of the fastening members toward the end of the first support member remote therefrom; thereby x. permitting the floor of the second support member to be pivotal through an angle of at least about 45* with respect to the floor of the first support member; wherein xi. the ends of the sidewalls of the first support member remote from the fastening members are each provided with mutually coplanar and outwardly extending flange portions adapted to be placed on the surface to be penetrated by said bit and to act as a support base for the jig when in use; and wherein xii. the sidewalls of the first support member are each provided with an extended portion at an end thereof; and xiii. a hand receiving slot is provided in each extended portion.
Claim 3
Dependent Claim
184 words
The jig of claim 1 wherein: the means for locking the support members together at a predetermined angle is A threaded fastener element affixed in the sidewall of the second support member and extending therefrom and through an arcuate slot formed through the sidewall of the first support member and adjustably locked thereto by a nut element threaded on the threaded fastener element and bridging said slot, said slot being adjacent a said fastening member extending through the same sidewall and said slot being positioned at least approximately between the fastening member and the free edge of the sidewall furthest from the floor, the radius of curvature of the slot being centered at said fastening member, the said slot extending through an arc of at least about 35* forwardly from a line drawn perpendicularly from the plane of the floor and passing through the axis of the fastening member and extending toward the remote end of the jig, and said threaded fastener element being freely movable along said slot when the nut element is not tightened against the sidewall of the first support member.
Claim 4
Dependent Claim
20 words
The jig of claim 2, wherein: said slot extends through an arc of at least 45* forwardly from said line.
Claim 5
Dependent Claim
38 words
The jig of claim 1 wherein: the floor of each of the support members is compound longitudinally of the jig and adjustably expandable transversely, thereby and therewith to widen the jig to accommodate electric drills of various widths.
Claim 6
Dependent Claim
107 words
The jig of claim 1, wherein: the said mounting means comprises a raised elonged, planar, rectangular track member fixedly mounted on the floor of said second support member, a rectangular planar guide member superposed and slideable on said track member, positioning blocks along the lateral edges of said guide member, and means for fastening the electric drill to said guide member, the guide member being planar, substantially rectangular and foreshortened relative to said track member and being slideably held thereto by a U-shaped flange portion of the guide member extending longitudinally along each lateral edge and past and around the corresponding lateral edges of the track member.
Claim 7
Dependent Claim
79 words
The jig of claim 1, wherein: the sidewalls of the first of said support members are each provided with an extended portion at an end thereof, each extended portion being substantially wider than the rest of the sidewall save for the sidewall having a portion with said arcuate slot therein and each terminating at the end along a common plane substantially perpendicular to the floor of the member and the sidewalls thereby forming a stable base for same jig.
Claim 8
Dependent Claim
90 words
The jig of claim 1, wherein: the slideable means for mounting the portable electric drill motor is a substantially rectangular guide member adapted to slide upon track means, and the guide member is provided with a substantially V-shaped cradling block for the drill motor fastening means for securing the drill motor to the guide member, and the guide member having a floor and adjustable threadable means extending transversely upwardly through the floor and adapted to bear against the drill motor adjacent an end thereof when mounted on said guide member.
Claim 9
Dependent Claim
13 words
The jig of claim 7, wherein: the track means is discontinuous and segmented.
Claim 10
Dependent Claim
76 words
The jig of claim 8, wherein: the discontinuous and segmented track means is a series of foreshortened cylindrical studs attached to the floor of the second support member and aligned along a longitudinally extending line about midway between the sidewalls, each stud being provided with an enlarged cylindrical head portion spaced apart from the floor, the spacings being uniform and adapted to receive the flanges of a flanged guide member slideable along such segmented track means.
Claim 11
Dependent Claim
15 words
The jig of claim 7, wherein: the guide member is readily removable from the jig.
Claim 12
Dependent Claim
22 words
The jig of claim 10, wherein: the guide member is readily removed, reversed 180* in direction and operatively reassembled with the jig.
Claim 13
Dependent Claim
25 words
The jig of claim 1, wherein each slot extends substantially in a direction perpendicular to the plane of the floor of said first support member.
References Cited (Backward Citations)
US2802380A
Cited
US3119286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |